{"id":"CVE-2026-100193","revision":null,"records":[{"revision":"5af24faa2e9441af90f9794771a82dab","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100193","aliases":[],"title":"Tutor LMS <= 4.1.0 - Reflected Cross-Site Scripting via 'tab' Parameter","description":"The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in all versions up to, and including, 4.1.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the targeted lesson page to have an empty nav-items array — a condition that occurs naturally when a lesson has no post content, no attachments, and comments are disabled or the viewer is not logged in — which bypasses the in_array() tab validation and allows the raw attacker-controlled value to reach the sink.","state":0,"publishedAt":"2026-10-14T03:40:00.264+00:00","modifiedAt":"2026-10-14T17:51:08.905+00:00","affected":[{"ecosystem":"Vendor product","name":"Tutor LMS – eLearning and online course solution","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"themeum\",\n                    \"product\": \"Tutor LMS – eLearning and online course solution\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"4.1.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/4322fce1-0403-4458-82e3-7d374ab724c9?source=cve","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/templates/learning-area/lesson/content.php#L56","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/templates/learning-area/lesson/content.php#L27","https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/Lesson.php#L1018","https://plugins.trac.wordpress.org/changeset/3730615/tutor/trunk/templates/learning-area/lesson/content.php"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100193","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100193","identifiers":["CVE-2026-100193"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T02:02:16.7426948+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T02:02:16.7426948+00:00","lastSuccessAt":"2026-11-10T02:02:16.8834841+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.8834842+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-3682c03b9a65aeeb7a6398250677204fe1fddf168002894b8519e9831c9838b3","complete":true,"records":421860,"lastAttemptAt":"2026-11-10T02:02:16.0380672+00:00","lastSuccessAt":"2026-11-10T02:02:15.9983406+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.0380672+00:00","snapshotPublishedAt":"2026-11-10T01:19:15+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-95ac548a470c4c5aa367bc8af19bcc62","complete":false,"records":13689,"lastAttemptAt":"2026-11-10T02:12:04.0124684+00:00","lastSuccessAt":"2026-11-10T02:12:04.0765878+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:12:04.0765878+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T02:02:16.7426948+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T02:02:16.7426948+00:00","lastSuccessAt":"2026-11-10T02:02:16.8841913+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.8841914+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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